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Finding the Fourth Proportional to 439,467.54, 606,477.15 and 248,509.50

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Solution

The fourth proportional to 439,467.54, 606,477.15 and 248,509.50 is: 342,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,467.54 : 606,477.15 = 248,509.50 : x
  2. Step 2: Convert to fraction form
    439,467.54/606,477.15 = 248,509.50/x
  3. Step 3: Cross multiply
    439,467.54x = 606,477.15 × 248,509.50
  4. Step 4: Simplify right side
    439,467.54x = 150,715,333,307.93
  5. Step 5: Solve for x
    x = 150,715,333,307.93/439,467.54
  6. Step 6: Final answer
    x = 342,949.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.